• Disclosure
  • Privacy Policy
  • DMCA Policy
  • CCPA
  • Medical Disclaimer
Saturday, April 1, 2023
Bell County News Online
  • Home
  • News
  • Business
  • Technology
    • Crytpocurrency
    • Gaming
    • Gadgets
  • Sports
  • Health
  • General
    • Business Services
  • Travel
  • Press Releases
  • Popular
No Result
View All Result
  • Home
  • News
  • Business
  • Technology
    • Crytpocurrency
    • Gaming
    • Gadgets
  • Sports
  • Health
  • General
    • Business Services
  • Travel
  • Press Releases
  • Popular
No Result
View All Result
No Result
View All Result
Home Travel

Time Between Pfizer And Moderna Covid-19 Vaccines Can Be Up To 8 Weeks For Some People, Updated CDC Guidance Says – CNN

by NewsReporter
February 23, 2022
in Travel
time-between-pfizer-and-moderna-covid-19-vaccines-can-be-up-to-8-weeks-for-some-people,-updated-cdc-guidance-says-–-cnn
Share on FacebookShare on Twitter

CNN —  

The interval between first and second doses of the Pfizer and Moderna Covid-19 vaccines may be as long as eight weeks for certain people, the US Centers for Disease Control and Prevention said in vaccine guidance updated Tuesday.

Previous guidance said the second doses should be administered three weeks after the first shot of the Pfizer vaccine or four weeks after the first shot of the Moderna vaccine.

The vaccines remain safe and effective at their original intervals, the CDC said, but extending the interval may reduce the risk of myocarditis, a type of heart inflammation, in some populations. Rare cases of myocarditis have been reported primarily after the second dose of mRNA Covid-19 vaccines, and males ages 12 to 29 are at highest risk.

“While absolute risk remains small, the relative risk for myocarditis is higher for males ages 12-39 years, and this risk might be reduced by extending the interval between the first and second dose,” the CDC said, noting that some studies in people older than 12 have shown “the small risk of myocarditis associated with mRNA COVID-19 vaccines might be reduced and peak antibody responses and vaccine effectiveness may be increased with an interval longer than 4 weeks.”

“An 8-week interval may be optimal for some people ages 12 years and older, especially for males ages 12–39 years,” the new guidance says.

The CDC says the three- or four-week interval is still recommended for people who are moderately or severely immunocompromised, adults 65 and older “and others who need rapid protection due to increased concern about community transmission or risk of severe disease.” There’s no data around children younger than 11, so this group is still recommended to get the second Pfizer vaccine three weeks after the first dose.

Booster doses continue to be recommended for most people five months after the two-dose primary series of an mRNA vaccine or two months after a Johnson & Johnson single-dose primary vaccination.

At a meeting of the CDC’s independent Advisory Committee on Immunization Practices this month, agency officials suggested that guidance could be updated to recommend lengthening the interval between first and second doses of the mRNA vaccines.

The CDC’s Dr. Sara Oliver, an epidemic intelligence service officer with the Division of Viral Diseases, told the committee that rates of myocarditis were lower with extended intervals between first and second doses. Still, the benefits of receiving the Pfizer or Moderna vaccine are clear, regardless of the time in between shots, she said.

“The benefits for both mRNA vaccines far outweigh the risk of myocarditis compared to no vaccine,” Oliver said.

Canada opted to delay a second doses to eight-week intervals in order to vaccinate more people when shots were in short supply. Several studies found that the delay lowered the already rare risk of myocarditis or pericarditis after vaccination, and there was an added benefit.

“Eight weeks can create the opportunity to develop stronger and more broad immunity, which could be important in future waves of the pandemic,” Matthew Tunis, executive secretary for Canada’s National Advisory Committee on Immunization, told CNN.

Tunis and his colleagues from the Public Health Agency of Canada presented their data about the delayed dosing schedule to the CDC’s vaccine advisers in early February, when the agency was considering extending the interval between doses.

Dr. Ralf Duerr, an assistant professor in the Department of Microbiology at NYU Langone Health, co-authored studies on the effects of the delayed dose and found that the shot could be delayed even longer and still provide robust protection.

“With later dosing of the second shot, we actually obtained a better immune response, and it was better in quantity and quality,” Duerr said.

Studies also showed that a delay in getting the second dose would not leave people unprotected between shots.

“There was a bit of kind of anger among people at first who wondered if they were going to be protected with the delay. Is it going to be as good as the clinical trial?” said Rebecca Payne, a Newcastle University immunologist who has co-authored comprehensive studies about the effects of a delayed dose in the UK.

With the longer dosing schedule, antibody levels waned a bit between the first and second doses, but T-cells – which promote antibody protection and can kill infected cells – were well-maintained between doses.

After the second dose on the longer schedule, antibody levels surpassed those generated with the shorter schedule.

“So we could be reassured that people were protected during that longer interval, and then what we found was that actually, after the second dose in that longer interval, that after the second vaccine, what we saw was that the antibodies were doing a lot better, particularly when we tested it against a couple of the variants, including Delta,” Payne said.

Also after the delayed dose, a higher proportion of the T-cells were helper T-cells, which are key to long-term immune memory with the longer dosing schedule, her study found.

“That implies that they’re getting slightly better immune response,” Payne said.

Importantly, she said, studies showed that both the short and long dosing schedules lead to strong real-world protection.

Related Posts

the-best-credit-card-for-travel-has-a-welcome-offer-worth-$1,000-–-usa-today

The Best Credit Card For Travel Has A Welcome Offer Worth $1,000 – USA TODAY

by NewsReporter
April 15, 2022
0

— Our editors review and recommend products to help you buy the stuff you need. If you sign up for a credit card after clicking one of our links, we may earn a small fee for referring you. However, our picks and opinions are independent from USA TODAY's newsroom and...

work-your-way-through-vacation:-ways-to-travel-for-free-–-69news-wfmz-tv

Work Your Way Through Vacation: Ways To Travel For Free – 69News WFMZ-TV

by NewsReporter
April 14, 2022
0

WFMZ-TV 69 News provides news, weather, traffic, sports and family programming for the Lehigh Valley, Berks County, Southeastern Pa., Poconos and Western NJ including Allentown, Bethlehem, Easton, Reading, Kutztown, Emmaus, Quakertown, Stroudsburg, Philadelphia, Jim Thorpe, Doylestown, Phillipsburg, Flemington, Wilmington, and Newark. This website is not intended for users located within...

alia-bhatt-ranbir-kapoor-wedding-live-updates,-14-april-2022:-ranbir-alia-marriage-news-live,-alia-ranbir-wedding-venue,-alia-bhatt-and-ranbir-kapoor’s-wedding-photos,-videos,-live-coverage-here-–-the-indian-express

Alia Bhatt Ranbir Kapoor Wedding LIVE Updates, 14 April 2022: Ranbir-Alia Marriage News LIVE, Alia Ranbir Wedding Venue, Alia Bhatt And Ranbir Kapoor’s Wedding Photos, Videos, LIVE Coverage Here – The Indian Express

by NewsReporter
April 14, 2022
0

Alia Bhatt, Ranbir Kapoor wedding live: Alia Bhatt and Ranbir Kapoor will get married today.Alia Bhatt, Ranbir Kapoor wedding live updates: Alia Bhatt and Ranbir Kapoor are all set to tie the knot today. On Wednesday, the couple conducted their pre-wedding ceremonies. Ranbir hosted the mehendi and haldi ceremonies at...

the-best-time-to-book-a-flight-including-tips-and-tricks-–-the-manual

The Best Time To Book A Flight Including Tips And Tricks – The Manual

by NewsReporter
April 13, 2022
0

Most people will, at some point in their lives, need to book a flight. Whether for business or pleasure, booking a flight can be straightforward or a little more complicated depending on certain factors. If a flight is urgent, then the luxury of booking in advance and saving money is...

Bell County News Online

© 2021 Bell County News Online

Navigate Site

  • Disclosure
  • Privacy Policy
  • DMCA Policy
  • CCPA
  • Medical Disclaimer

Follow Us

No Result
View All Result
  • Home
  • DMCA Policy
  • Medical Disclaimer
  • Privacy Policy
  • Disclosure
  • CCPA
  • Terms of Use

© 2021 Bell County News Online

We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
Cookie SettingsAccept All
Manage consent

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
CookieDurationDescription
cookielawinfo-checkbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytics
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
Others
Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
SAVE & ACCEPT